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| author | Fan Ye <fy15309206903@gmail.com> | 2026-08-10 09:38:43 +0000 |
|---|---|---|
| committer | Mika Westerberg <mika.westerberg@linux.intel.com> | 2026-08-10 13:29:23 +0200 |
| commit | e8158c8a6a232a70ae70c5acfaf7008a99b716c1 (patch) | |
| tree | be79d5ebd8df794c2ff1f05a54daddb52788f248 | |
| parent | f7c0e02eb61284395f74424edaefbbd323f83c4e (diff) | |
| download | linux-stable-e8158c8a6a232a70ae70c5acfaf7008a99b716c1.tar.gz linux-stable-e8158c8a6a232a70ae70c5acfaf7008a99b716c1.zip | |
thunderbolt: Use min() for the DMA path credit cap
tb_dma_reserve_credits() caps the request against what the adapter has
left by decrementing one credit at a time. The other arm of the same
if() already caps with min(port->total_credits, credits); use min()
here too.
No functional change: the object code is unchanged.
Assisted-by: Claude:claude-opus-5
Signed-off-by: Fan Ye <fy15309206903@gmail.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
| -rw-r--r-- | drivers/thunderbolt/tunnel.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/thunderbolt/tunnel.c b/drivers/thunderbolt/tunnel.c index b7f32305f14a..e9214de5f3b7 100644 --- a/drivers/thunderbolt/tunnel.c +++ b/drivers/thunderbolt/tunnel.c @@ -1778,8 +1778,7 @@ static int tb_dma_reserve_credits(struct tb_path_hop *hop, unsigned int credits) if (available < TB_MIN_DMA_CREDITS) return -ENOSPC; - while (credits > available) - credits--; + credits = min(credits, available); tb_port_dbg(port, "reserving %u credits for DMA path\n", credits); |